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12886706 = 272131497
BaseRepresentation
bin110001001010…
…001010110010
3220020201020102
4301022022302
511244333311
61140112402
7214351400
oct61121262
926221212
1012886706
117301a78
124395702
132892791
1419d6470
1511e843b
hexc4a2b2

12886706 has 12 divisors (see below), whose sum is σ = 22486158. Its totient is φ = 5522832.

The previous prime is 12886667. The next prime is 12886711. The reversal of 12886706 is 60768821.

It can be written as a sum of positive squares in only one way, i.e., 8850625 + 4036081 = 2975^2 + 2009^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12886706.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65651 + ... + 65846.

Almost surely, 212886706 is an apocalyptic number.

12886706 is a deficient number, since it is larger than the sum of its proper divisors (9599452).

12886706 is a wasteful number, since it uses less digits than its factorization.

12886706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131513 (or 131506 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 12886706 is about 3589.8058443320. The cubic root of 12886706 is about 234.4484181489.

The spelling of 12886706 in words is "twelve million, eight hundred eighty-six thousand, seven hundred six".

Divisors: 1 2 7 14 49 98 131497 262994 920479 1840958 6443353 12886706